JP5015726B2 - Vehicle wiper - Google Patents

Description

  The present invention relates to a connecting structure between a wiper arm and a wiper blade in a vehicle wiper that wipes a wiping surface such as a windshield (windshield glass) of an automobile.

2. Description of the Related Art Conventionally, there is a vehicle wiper in which a wiper arm and a wiper blade are detachably coupled via a coupling member such as a clip (for example, see Patent Document 1). The wiper blade having such a connection structure includes a long blade rubber for wiping the wiping surface and a lever member for holding the blade rubber. A connecting pin is fixed inside the opening formed in the center in the longitudinal direction of the lever member, and the connecting member is rotatably attached to the connecting pin. On the other hand, the wiper arm tip is formed in a U-hook shape with a free end on the wiping surface side, and the connecting member is locked to the hook of the tip, whereby the wiper blade is rotatably connected to the wiper arm. Yes. In such a connection structure, since the connection member is held by the U hook on the wiping surface side and the opposite side, the wiper arm and the wiper blade are stably connected without backlash.
JP-A-11-310110

  By the way, in recent years, there is a so-called single lever type of a vehicle wiper in which a blade rubber is held by one lever member in order to keep a height dimension (a dimension in a direction perpendicular to the wiping surface) small. In such a wiper, the blade rubber protrudes in the longitudinal direction from the holding portions provided at both ends of the lever member, and has a follow-up end portion that freely follows the curve of the wiping surface, and is provided from the holding portion of the lever member. The pressing force from the wiper arm toward the wiping surface is dispersed in the longitudinal direction of the blade rubber by backing, and the pressing force is also transmitted to the following end.

  However, when such a single lever configuration is applied to the vehicle wiper as in Patent Document 1, the blade rubber is positioned below the U hook fixed to the connecting member at the center in the longitudinal direction of the lever member. There is a possibility that the longitudinal center portion of the rubber may interfere with the lower end of the U hook due to the curvature of the blade rubber when following the wiping surface. Therefore, in order to avoid the interference, the interval between the connecting member and the blade rubber must be set large, and there is still room for improvement in terms of suppressing the height dimension of the wiper.

  Also, in order to connect the U hook to the connecting member, an opening space for accommodating the bent back portion of the U hook (the portion bent back from the wiper arm distal end side toward the proximal end side) is secured on the distal end side of the lever member. There is a need to. Since this opening space is necessary only for connecting the U hook to the connecting member, it remains open after the connection, and the appearance of the appearance is not impaired, and snow or the like invades the wiper arm and the wiper blade. There is a risk of hindering smooth rotation.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a vehicle wiper that can improve the appearance of a connecting portion between a wiper blade and a wiper arm and can keep the height dimension small. It is to provide.

In order to solve the above-mentioned problem, the invention according to claim 1 is directed to a wiper blade in which a long blade rubber for wiping the wiping surface is held by a lever member, and to connect the wiper blade. A wiper arm having a tip connecting portion, and a connecting member is rotatably supported in an accommodation opening formed in the lever member so as to penetrate in a direction perpendicular to the wiping surface, and the tip connecting portion is connected to the connecting member. The wiper arm and the wiper blade are connected to each other so that the wiper arm and the wiper blade are connected to each other so as to be relatively rotatable, and the tip connecting portion of the wiper arm is an upper wall that comes into contact with the upper surface of the connecting member And a pair of side wall portions extending in the width direction perpendicular to the longitudinal direction of the wiper blade on the upper wall portion and a pair of side wall portions extending toward the wiping surface, In addition, a dimension between the pair of side wall portions is formed to be larger than a width dimension of the blade rubber, and the connection member includes a mounting portion in which the pair of side wall portions of the wiper arm is housed and mounted from the upper surface, and the connection member. Is provided so as to be relatively slid toward the base end side of the wiper arm, and a locking portion that is locked with the tip connecting portion is provided , and each side wall portion of the tip connecting portion is provided with the longitudinal direction. The first and second hooking claws that are juxtaposed to each other and protrude toward the tip end side of the wiper arm are provided so that they can be locked to the connecting member .

  According to the present invention, the tip connecting portion fixed to the connecting member rotatably supported by the lever member of the wiper blade includes the upper wall portion contacting the upper surface of the connecting member, and the longitudinal direction of the wiper blade in the upper wall portion Are formed in a U-shaped cross section from between a pair of side walls extending from both ends in the width direction orthogonal to the wiping surface side, and the dimension between the pair of side walls is formed larger than the width dimension of the blade rubber. Thereby, since a space in which the blade rubber can move is secured between the pair of side wall portions in the tip connecting portion of the wiper arm, the blade rubber can be configured to be held at a position closer to the connecting member. The height dimension can be suppressed. Further, the pair of side walls of the wiper arm are accommodated and attached to the connecting portion of the connecting member from the upper surface of the connecting member, and the distal end connecting portion and the wiper arm are moved by relatively sliding the connecting member toward the base end side of the wiper arm. It is locked by the locking portion. For this reason, in the connected state of the wiper arm and the wiper blade, it is possible to configure the upper wall portion of the tip connecting portion to cover substantially the entire longitudinal direction of the housing opening of the lever member in which the connecting member is accommodated. Thus, the appearance of the wiper can be improved.

  In this invention, each side wall portion of the tip connecting portion is provided with claw-shaped first and second locking claws juxtaposed in the longitudinal direction and projecting to the tip side of the wiper arm so as to be locked to the connecting member. The connecting member can be stably fixed to the tip connecting portion.

The invention of claim 2 is the vehicle wiper according to claim 1, wherein the connecting member, which is pivotally supported on bridged by a connecting pin in the width direction in the inside of the receiving opening, The gist is that the connecting pin is configured to be disposed on at least one of the wiping surface side of the upper wall portion of the tip connecting portion and the anti-wiping surface side of the locking claw.

  In this invention, the connecting pin that pivotally supports the connecting member is arranged on at least one of the wiping surface side of the upper wall portion of the tip connecting portion and the anti-wiping surface side of the locking claw. As a result, when an external force or impact is applied to the wiper blade, at least one of the tip connecting portion and the locking claw can receive the force acting on the connecting pin, so that the connection strength between the wiper blade and the wiper arm can be increased. Can be improved.

According to a third aspect of the present invention, in the vehicle wiper according to the first or second aspect , the connecting member is formed to extend from the opening end of the accommodation opening of the lever member toward the inside thereof. The gist is that the rotation is restricted by the restricting portion.

  In this invention, the restricting portion for restricting the rotation of the connecting member is formed to extend from the opening end of the accommodation opening toward the inside thereof. That is, since the restricting portion is configured inside the accommodating opening, it is possible to contribute to improving the appearance of the wiper.

According to a fourth aspect of the present invention, in the vehicle wiper according to any one of the first to third aspects, the front end connecting portion has a fitting protrusion protruding in the longitudinal direction from a front end of an upper wall portion thereof. The gist is that the fitting convex portion is fitted into a concave portion formed on the upper surface of the connecting member.

  In this invention, the front end connecting portion is formed with a fitting convex portion protruding in the longitudinal direction from the front end of the upper wall portion, and the fitting convex portion is fitted into a concave portion formed on the upper surface of the connecting member. Therefore, rattling between the tip connecting portion and the connecting member can be suppressed.

  Therefore, according to the above described invention, it is possible to improve the appearance of the connecting portion between the wiper blade and the wiper arm, and to keep the height dimension of the wiper small.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
1 and 2 is for wiping a wiping surface 1a of a windshield (windshield glass) 1 of a vehicle. The vehicle wiper 10 includes a wiper arm 11 whose base end is fixed to a pivot shaft (both not shown) that is rotated by driving of a wiper motor, and a wiper blade 12 that is attached to the distal end of the wiper arm 11. Yes. In FIG. 1 and the like, the wiper arm 11 is depicted only on the tip side. A spring (not shown) is provided at the base end portion of the wiper arm 11, and the wiper arm 11 presses the wiper blade 12 toward the wiping surface 1a by the spring. The wiper arm 11 is rotated by a predetermined angle by a wiper motor, and the wiper blade 12 wipes a predetermined angular range of the wiping surface 1a of the windshield 1 by the rotation.

  A clip member 14 as a tip connecting portion fixed at the tip of the wiper arm 11 via a flat arm piece 13 is for connecting the wiper blade 12 to the wiper arm 11. As shown in FIGS. 2 and 3A and 3B, the clip member 14 formed by pressing a metal member is coupled so as to be surrounded by the distal end portion of the arm piece 13, and A locking recess 14a is formed on the lower surface (the surface on the wiping surface 1a side) of the coupling portion. A portion of the clip member 14 on the front end side with respect to the coupling portion has a U-shaped cross section that opens to the wiping surface 1a side by an upper wall portion 15 and a pair of side wall portions 16 extending downward from both ends in the width direction of the upper wall portion 15. In addition, a fitting convex portion 15 a that protrudes in the longitudinal direction is formed at the tip of the upper wall portion 15. A claw-like (substantially L-shaped) projecting toward the distal end side of the wiper arm 11 in the same direction as the fitting convex portion 15a from the wiping surface 1a side at the distal end of each side wall portion 16 and from there. A first locking claw 16a is formed. Further, a second locking claw 16b having substantially the same shape as the first locking claw 16a is formed at a position spaced apart from the first locking claw 16a on the base end side in each side wall portion 16 by a predetermined distance.

  On the other hand, as shown in FIG. 2, the wiper blade 12 has a lever member 21 connected to the wiper arm 11, a long blade rubber 22 held by the lever member 21, and the blade rubber 22 along the longitudinal direction. It is composed of a backing 23 to be attached.

  The lever member 21 is formed by pressing a metal plate material, and has a longitudinal length of about one third of the wiper blade 12 (blade rubber 22). A holder portion 24 is formed at the center in the longitudinal direction of the lever member 21 as a housing opening made up of a pair of parallel side walls 24a, and extends along the same direction on both sides in the longitudinal direction of the holder portion 24. A pair of formed arm portions 25 are provided integrally. Between each side wall 24a of the holder part 24, an opening 24b penetrating in the direction perpendicular to the wiping surface 1a is formed, and a restriction part 24c extending from the end to the inside is bent in the opening 24b. (See FIG. 6). Further, a damper 31 as a connecting member connected to the clip member 14 is rotatably attached to the connecting pin 26 that is spanned and fixed to each side wall 24a inside the opening 24b.

  As shown in FIG. 2 and FIG. 4B, the damper 31 made of a resin material is formed with a circular connecting hole 32a penetrating in the width direction in the head portion 32 at the tip, and from the connecting hole 32a. An introduction groove 32b extending downward is formed so as to be continuous. The connecting pin 26 is inserted from the introduction groove 32b and is elastically engaged with the connecting hole 32a. In addition, an inclined surface 32c that is inclined obliquely downward toward the base end side is formed at the center lower portion in the width direction of the head portion 32, and the fitting convex portion 15a of the clip member 14 is formed on the upper surface of the head portion 32. A concave portion 32d having a corresponding shape is formed.

  As shown in FIG. 4A, the damper 31 has a pair of side walls 33 extending from both ends in the width direction of the head portion 32 toward the base end side. Extending portions 34 extending from the side walls toward the base end side are formed at predetermined intervals from the side walls 33. In addition, the extension part 34 is formed so that the longitudinal dimension is shorter than the side wall 33. Further, the upper surface of the extended portion 34 forms a plane continuous with the recessed portion 32d and is slightly inclined upward. Between the extended portion 34 of the damper 31 and each side wall 33, a mounting portion 31 a for accommodating and mounting the side wall portion 16 of the clip member 14 vertically from the upper surface side of the extended portion 34 toward the upper surface thereof is provided. Is formed along the longitudinal direction, and an engaging portion 35 is installed at the longitudinal center of the mounting portion 31a. A beam 36 is stretched between the side walls 33 near the base end of the damper 31. The flat elastic piece 37 extending from the lower end of the extending portion 34 toward the upper side of the beam 36 is formed with a wide end, and a cross section is provided at a position overlapping the beam 36 on the upper surface of the elastic piece 37. A locking projection 37a is formed as a locking portion having a triangular shape.

  The connection state of the clip member 14 and the damper 31 as described above is shown in FIG. The upper wall portion 15 of the clip member 14 is in contact with the upper surface of the extending portion 34 so as to cover it, and the fitting convex portion 15 a is fitted in the concave portion 32 d of the damper 31. The side wall portion 16 of the clip member 14 is inserted and accommodated vertically into the mounting portion 31a of the damper 31 from the upper surface side of the extending portion 34 toward the upper surface thereof. The distal end portion of the side wall portion 16 is in contact with the contact surface 32e on the proximal end side slightly from the connection hole 32a in the head portion 32 of the damper 31, and the first locking claw 16a is from the connection hole 32a (connection pin 26). Located on the lower side. That is, the connecting pin 26 is disposed between the fitting convex portion 15a of the clip member 14 and the first locking claw 16a in a direction perpendicular to the wiping surface 1a. The second locking claw 16b is locked to the engaging portion 35 of the damper 31 so as to wrap around the lower side (wiping surface 1a side), and the elastic piece 37 is held in the locking recess 14a of the clip member 14. The locking protrusion 37a is locked. As shown in FIG. 1, the clip member 14 fixed to the damper 31 covers substantially the entire upper surface of the damper 31 and also covers substantially the entire opening 24 b of the holder portion 24. Thereby, in the top view of the wiper 10 for vehicles, since the opening in the connection part of the wiper arm 11 and the wiper blade 12 is few, it contributes to the external appearance improvement of the wiper 10 for vehicles.

  Further, as shown in FIG. 6, the damper 31 is configured such that the tip of the elastic piece 37 can come into contact with the upper surface of the holder part 24, and the clip member 14 does not come into direct contact with the holder part 24. Further, as shown in FIG. 7A, the damper 31 is in the middle of upward rotation from the holder portion 24, and the inclined surface 32 c of the head portion 32 comes into contact with the bent portion at the tip of the restricting portion 24 c of the holder portion 24. Further, further rotation in the same direction is restricted.

  As shown in FIGS. 1 and 2, a holding portion 25 a for holding the blade rubber 22 is integrally provided at the distal end portion of the arm portion 25 of the lever member 21, that is, at both ends in the longitudinal direction of the lever member 21. . The holding portion 25a is configured such that a pair of claw-like portions protrudes inward in the width direction, and holds the blade rubber 22 at two positions obtained by dividing the blade rubber 22 into approximately three equal lengths. Further, the arm portion 25 is provided with a fin portion 25b that is bent into a mountain fold shape and generates a pressing force that presses the blade rubber 22 toward the wiping surface 1a through the holding portion 25a when receiving the traveling wind during forward traveling of the vehicle. It has been.

  As shown in FIG. 5A, the blade rubber 22 made of a long elastic member has a width direction dimension smaller than a dimension between the side wall portions 16 of the clip member 14, and its longitudinal direction. The center is held so as to be located immediately below the holder portion 24 (damper 31) of the lever member 21. 5A and 5B schematically show a cross section passing through the connecting pin 26 in the center portion in the longitudinal direction of the vehicle wiper 10. The blade rubber 22 is formed with a backing receiving groove 22a that opens on both sides in the width direction and has a concave shape along the width direction, and is formed over substantially the entire length of the blade rubber 22 in the longitudinal direction. In addition, a holding groove 22b is formed on the lower side of each backing housing groove 22a over substantially the entire longitudinal direction. A pair of claw-like portions constituting the holding portion 25a of the lever member 21 are inserted into the holding groove 22b from the longitudinal direction, and the blade rubber 22 is moved relative to the lever member 21 by insertion of the holding portion 25a into the holding groove 22b. Held. In the holding groove 22b, there is provided a locking portion (not shown) for locking with the claw-shaped portion of one holding portion 25a, and the blade rubber 22 is separated from the lever member 21 at the time of use by mutual locking. It is prevented from falling out.

  A pair of backings 23 as leaf spring members having a length in the longitudinal direction equivalent to that of the blade rubber 22 are accommodated in the backing accommodation grooves 22 a of the blade rubber 22. The backing 23 is formed in a curved shape having a curvature larger than the curvature of the wiping surface 1a, with the central portion in the longitudinal direction of the blade rubber 22 when the backing 23 is mounted being convex on the side of the wiping surface. The backing 23 distributes the pressing force transmitted from the holding portion 25 a of the lever member 21 toward the wiping surface 1 a from the wiper arm 11 in the longitudinal direction of the blade rubber 22. Incidentally, caps 27 are attached to both ends of the blade rubber 22 for preventing the backing 23 from coming off.

  The upper surface 22x of the blade rubber 22 has a portion protruding in the longitudinal direction from both end portions (holding portions 25a) of the lever member 21, that is, a free end that is not held by the lever member 21 so as to freely follow the curvature of the wiping surface 1a. In the following end X1, a fin portion 22c having a substantially triangular cross section that is continuous toward both ends in the longitudinal direction is erected so that the external shape of the fin portion 25b provided on the arm portion 25 is continuous. When the traveling wind hits the fin portion 22c, a pressing force for pressing the blade rubber 22 toward the wiping surface 1a is generated as in the fin portion 25b. On the other hand, the longitudinal center portion X2 between the holding portions 25a (between the following end portions X1) of the blade rubber 22 is a non-fin-formed portion where the fin portion 22c is not formed as shown in FIG. 5, and the upper surface 22x is flat. It is considered as a surface.

  In the vehicle wiper 10 having such a configuration, for example, when the blade rubber 22 has a small curvature, such as when in the retracted state, the central portion X2 of the blade rubber 22 is positioned below the lever member 21 (FIG. 5 ( a)). On the other hand, when the blade rubber 22 follows the wiping surface 1a during wiping and the curvature of the blade rubber 22 is increased, the central portion X2 of the blade rubber 22 approaches the damper 31 as shown in FIG. The middle part in the longitudinal direction enters the inside of the clip member 14 (between the pair of side wall parts 16).

  As described above, in the vehicle wiper 10 according to the present embodiment, a space in which the blade rubber 22 can move is secured between the pair of side wall portions 16 of the clip member 14, and therefore, the damper 31 considering the curvature of the blade rubber 22. Can be held at a closer position. The blade rubber 22 has a central portion X2 formed as a non-finned portion, so that the flexibility of the blade rubber 22 is ensured and interference with the damper 31 of the central portion X2 is prevented during wiping following the wiping surface 1a. It is set as the structure which does not prevent the curve followable | trackability with respect to the surface 1a. Thereby, the dimension from the upper wall part 15 of the clip member 14 to the lower end of the blade rubber 22, ie, the height dimension of the vehicle wiper 10, can be configured to be small.

  Next, attachment / detachment of the wiper blade 12 to / from the wiper arm 11 (clip member 14) will be described with reference to FIGS. 6 and 7A and 7B. 6 and 7A and 7B, the blade rubber 22 is omitted for convenience of explanation. When the wiper blade 12 is attached to the clip member 14, first, the engaging portion 35 of the damper 31 attached to the connecting pin 26 of the lever member 21 (holder portion 24) is used for the first and second locking of the clip member 14. The pair of side wall portions 16 are inserted into the mounting portions 31a formed between the extension portions 34 of the damper 31 and the respective side walls 33 so as to enter between the claws 16a and 16b from the upper surface side of the extension portions 34 toward the upper surface. Inserted vertically (see FIG. 7A). Thereafter, the damper 31 together with the lever member 21 is slid toward the proximal end side of the wiper arm 11 (or the clip member 14 of the wiper arm 11 is slid toward the distal end side with respect to the damper 31 of the lever member 21), and the head portion It pushes in until the contact surface 32e of 32 contacts the front-end | tip part of the side wall part 16 (clip member 14). At this time, the locking projection 37 a is locked with the locking recess 14 a of the clip member 14 by elastic return after the elastic piece 37 is pushed in, so that the damper 31 is fixed to the clip member 14.

  On the other hand, when removing from the clip member 14, the elastic piece 37 rotates the damper 31 in a direction away from the lever member 21, and then the elastic piece 37 is pushed down to lock the locking projection 37 a and the locking recess of the clip member 14. 14a is released, and then the damper 31 together with the lever member 21 is slid toward the non-base end side of the wiper arm 11 (see FIG. 7A). The clip member 14 is removed from the mounting portion 31a of the damper 31 after being slid to a position where the damper 31 and the first and second locking claws 16a and 16b are unlocked.

Next, characteristic effects of the present embodiment will be described.
(1) The clip member 14 as the tip connecting portion fixed to the damper 31 as the connecting member rotatably supported by the lever member 21 of the wiper blade 12 includes the upper wall portion 15 that contacts the upper surface of the damper 31. The upper wall portion 15 is formed in a U-shaped cross section from a pair of side wall portions 16 extending toward the wiping surface 1a from both ends in the width direction orthogonal to the longitudinal direction of the wiper blade 12, and the pair of side wall portions. The dimension between 16 is formed larger than the width dimension of the blade rubber 22. Thereby, since a space in which the blade rubber 22 can move is secured between the pair of side wall portions 16 of the clip member 14, the blade rubber 22 and the damper 31 can be configured to be held at positions closer to each other in the height direction. As a result, the height dimension of the vehicle wiper 10 can be suppressed.

  (2) After the clip member 14 is accommodated and mounted vertically on the mounting portion 31a of the damper 31 from the upper surface side of the extending portion 34 toward the upper surface thereof, the clip member 14 is directed toward the base end side of the wiper arm 11. 14 and the damper 31 are slid relative to each other, whereby the locking protrusion 37a provided on the damper 31 is locked with the clip member 14, and the clip member 14 and the damper 31 are coupled by the locking. It is like that. For this reason, when the wiper arm 11 and the wiper blade 12 are connected to each other, substantially the entire longitudinal direction of the holder portion 24 serving as the opening for accommodating the damper 31 and the lever member 21 is covered with the upper wall portion 15 of the clip member 14. The appearance of the vehicle wiper 10 can be improved.

  (3) On each side wall portion 16 of the clip member 14, first and second hooking claws 16 a and 16 b that are juxtaposed in the longitudinal direction and project to the tip side of the wiper arm 11 can be locked to the damper 31. Therefore, the damper 31 can be stably fixed to the clip member 14.

  (4) The connecting pin 26 that pivotally supports the damper 31 is disposed on the wiping surface 1a side of the upper wall portion 15 of the clip member 14 and the anti-wiping surface 1a side of the first locking claw 16a. That is, the connecting pin 26 is disposed between the upper wall portion 15 of the clip member 14 and the first locking claw 16a in the direction perpendicular to the wiping surface 1a. As a result, when the wiper blade 12 collides with the wiping surface 1a when the wiper is returned from the locked back state (the wiper arm 11 is in a standing posture state away from the wiping surface) to the wiping posture, an impact is applied. When an external force or impact is applied to the wiper blade 12 such as when the wiper blade 12 is forcibly peeled off in a cold region while being attached to the wiping surface 1a, the first or second locking claw 16a 16b receives the force acting on the connecting pin 26, so that the connection strength between the wiper blade 12 and the wiper arm 11 can be further improved.

  (5) A restricting portion 24 c for restricting the rotation of the damper 31 is formed extending from the opening end portion of the holder portion 24 toward the inside thereof. That is, since the restricting portion 24 c is configured inside the holder portion 24, it can contribute to improving the appearance of the vehicle wiper 10.

  (6) The clip member 14 is formed with a fitting convex portion 15 a that protrudes in the longitudinal direction from the tip of the upper wall portion 15, and the fitting convex portion 15 a is fitted into a concave portion 32 d formed on the upper surface of the damper 31. Therefore, rattling between the clip member 14 and the damper 31 can be suppressed.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the locking recess 14 a is formed on the lower surface of the clip member 14, and the elastic piece 37 is formed so as to extend from the lower end of the extending tip of the extending portion 34, but is not particularly limited to this. For example, it may be configured as shown in FIGS. 8A and 8B and FIGS. 9A and 9B. In the damper 31 shown in FIGS. 9 (a) and 9 (b), the elastic piece 50 is formed on the upper end of the extending portion 34, and the locking protrusion 50a formed on the elastic piece 50 is formed as shown in FIG. a) It can be locked in a locking hole 51 formed through the upper wall portion 15 of the clip member 14 shown in FIG.

  In the above embodiment, the elastic piece 37 is formed with the locking projection 37a as the locking portion, and the locking projection 37a is locked to the locking recess 14a of the clip member 14. In addition, for example, the elastic piece 37 may be provided with a locking hole as a locking portion, and the clip member 14 may be provided with a protrusion that can be locked in the locking hole.

  In the embodiment described above, the connecting pin 26 is configured to be disposed between the upper wall portion 15 (fitting convex portion 15a) of the clip member 14 and the first locking claw 16a in the direction perpendicular to the wiping surface 1a. However, other than this, for example, it may be configured to be disposed between the upper wall portion 15 and the second locking claw 16b. In addition to this, it may be configured such that only the first locking claw 16a (or the second locking claw 16b) is disposed on the wiping surface 1a side of the connecting pin 26, and the anti-wiping of the connecting pin 26 is also possible. You may comprise so that only the upper wall part 15 (fitting convex part 15a) of the clip member 14 may be arrange | positioned at the surface 1a side.

  In the above embodiment, the clip member 14 as the tip connecting portion is fixed via the arm piece 13 at the tip of the wiper arm 11, but may be formed integrally with the tip of the wiper arm 11.

The perspective view which shows the wiper for vehicles in this embodiment. (A) The disassembled perspective view of the wiper for vehicles, (b) The perspective view which shows a clip member and a damper. (A) The top view of the clip member as a front-end | tip connection part, (b) The side sectional view of a clip member. (A) The top view of the damper as a connection member, (b) The side view of a damper. (A) Cross-sectional view of the wiper during normal time, (b) Cross-sectional view of the wiper during blade rubber tracking. Sectional drawing which shows the connection part of a wiper arm and a wiper blade. (A), (b) The schematic diagram which shows the mode of an assembly | attachment of a wiper arm and a wiper blade. (A) The top view of the clip member of another example, (b) The sectional side view of the clip member of another example. (A) The top view of the damper of another example, (b) The side view of the damper of another example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1a ... Wiping surface, 10 ... Vehicle wiper, 11 ... Wiper arm, 12 ... Wiper blade, 14 ... Clip member as tip connection part, 15 ... Upper wall part of clip member, 15a ... Fitting convex part, 16 ... Clip member Side walls, 16a, 16b ... first and second locking claws, 21 ... lever member, 22 ... blade rubber, 24 ... holder part as a housing opening, 24c ... regulating part, 26 ... connecting pin, 31 ... connecting Damper as member, 31a: mounting portion, 32d: recess on the upper surface of the damper.

Claims (4)

A wiper blade formed by holding a long blade rubber for wiping the wiping surface with a lever member, and a wiper arm having a tip connecting portion for connecting to the wiper blade,
A connecting member is rotatably supported in an accommodation opening formed in the lever member so as to penetrate in a direction perpendicular to the wiping surface, and the tip connecting portion is connected to the connecting member, whereby the wiper arm And a wiper blade for a vehicle in which the wiper blade is connected to be relatively rotatable,
The tip connecting portion of the wiper arm has a pair of upper wall portions that contact the upper surface of the connecting member, and a pair of wiping surfaces extending from both ends of the upper wall portion in the width direction perpendicular to the longitudinal direction of the wiper blade. It is formed in a U-shaped cross section from the side wall part, and the dimension between the pair of side wall parts is formed larger than the width dimension of the blade rubber,
The connecting member includes a mounting portion in which a pair of side wall portions of the wiper arm is housed and mounted from the upper surface, and the connecting member is relatively slid toward the proximal end side of the wiper arm, thereby connecting the distal end. A locking portion to be locked with the portion ,
Claw-shaped first and second locking claws that are juxtaposed in the longitudinal direction and project to the distal end side of the wiper arm are provided on each side wall portion of the distal end coupling portion so as to be latched to the coupling member. A vehicle wiper characterized by that. The vehicle wiper according to claim 1 ,
The connecting member is pivotally supported by a connecting pin erected in the width direction inside the accommodating opening, and the connecting pin is on the wiping surface side of the upper wall portion of the tip connecting portion, and A vehicle wiper characterized in that it is arranged on at least one of the locking claws on the side opposite to the wiping surface. The vehicle wiper according to claim 1 or 2 ,
The connecting member is configured such that the rotation of the connecting member is restricted by a restricting portion that extends from the opening end of the accommodating opening of the lever member toward the inside thereof. For wiper. The vehicle wiper according to any one of claims 1 to 3 ,
A fitting projection that protrudes in the longitudinal direction from the tip of the upper wall portion is formed in the tip coupling portion, and the fitting projection is fitted into a recess formed on the upper surface of the coupling member. A vehicle wiper characterized by the following.

Images